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Old Jun 23, 2012, 11:40 AM
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Looking for VTOL that tilts props for control

I am looking for info and videos of a VTOL that uses servos to tilt a prop while in hover for pitch and roll control. I know I have seen them but searching couldn't find them. The prop is oriented so it is horizontal, motor shaft pointing vertical. Basically the tilting replaces cyclic as used on a helicopter.

I know most 1 man gyrocopters use tilting the rotor for control. I am interested in how using a tilting prop(rotor) for control compares to conventional cyclic on a RC vehicle.

I do not want tilt props like the Osprey or tilt wings. I am looking for hovering vehicles that use tilting the prop for stability control.

Thanks.
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Old Jun 24, 2012, 06:26 AM
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Check out the twin (side by side) copters. That is how most of them control pitch.

Example

Also, not quite the same, there are a couple of tilt the prop that have wing designs.

example
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Old Jun 24, 2012, 06:27 AM
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Weight shifting is the closest I have seen.
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Old Aug 23, 2012, 05:12 AM
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Read this tread, has lots of info on what you are looking for
http://www.rcgroups.com/forums/showthread.php?t=1278074
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Old Aug 23, 2012, 08:39 AM
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Unless you have a fully articulated rotor it is always a form of weight shifting. For a tilt prop to work there must be some distance between the CG of the plane and the prop tilting axis, and the CG must be beneath the tilt axis while in a hover. This is not desirable in full size planes, since there must be some available CG range (expecially for cargo planes), so generally even though the rotors do tilt, pitch is controlled with fore/aft cyclic, like roll is controlled with side/side cyclic in tandem helicopters.
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